00710pam a2200157 a 4500020002100000082001700021100002000038245006100058260005000119300002700169500004400196650017700240942000700417952011100424999001700535  a0133097250 (pbk)00a001.433bWEI1 aWeiss, Carol H.10aEvaluation bmethods for studying programs and policies   aUpper Saddle River, N.J.bPrentice Hallc1998  axii, 372 p. c; 23 cm.  aRev. ed. of: Evaluation research. 1972. 0aEvaluation research (Social action programs)vEvaluation purpose vEvaluation planning vCollecting data vRandomized experiment vPlanned variations vElevator role vIIMC  cBK  00104070aIMCbIMCd2014-01-16ePurchasedl0o001.433 WEIp19824r2014-01-16 00:00:00t1w2014-01-16yBK  c11674d11674